EP3581475B1 - Vehicle overturn detection device - Google Patents
Vehicle overturn detection device Download PDFInfo
- Publication number
- EP3581475B1 EP3581475B1 EP18752052.3A EP18752052A EP3581475B1 EP 3581475 B1 EP3581475 B1 EP 3581475B1 EP 18752052 A EP18752052 A EP 18752052A EP 3581475 B1 EP3581475 B1 EP 3581475B1
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- European Patent Office
- Prior art keywords
- vehicle
- interval
- detection
- over
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001514 detection method Methods 0.000 title claims description 65
- 230000001133 acceleration Effects 0.000 claims description 61
- 230000001788 irregular Effects 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 2
- 230000007257 malfunction Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
- B60R16/0233—Vehicle tilting, overturning or roll over
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
- B62J45/40—Sensor arrangements; Mounting thereof
- B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
- B62J45/415—Inclination sensors
- B62J45/4151—Inclination sensors for sensing lateral inclination of the cycle
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/02—Details
- G01C9/06—Electric or photoelectric indication or reading means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
- B62J45/40—Sensor arrangements; Mounting thereof
- B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
- B62J45/414—Acceleration sensors
Definitions
- An object of the present invention is to provide a falling-over detection device that can prevent malfunction even in a case where noise caused by a disturbance factor affects detection of inclination of a vehicle.
- the vehicle falling-over detection device is configured according to claim 1 such that the interval deciding means includes: noise generating means for generating white noise, and pulse signal generating means for generating a pulse signal from the white noise; and a pulse interval of the pulse signal is used as the detection interval.
- the interval deciding means includes: noise generating means for generating white noise, and pulse signal generating means for generating a pulse signal from the white noise; and a pulse interval of the pulse signal is used as the detection interval.
- Fig. 1(A) illustrates a state where the motorcycle M that is not moving is inclined by an angle ⁇ .
- acceleration that acts on the motorcycle M is only gravitational acceleration g.
- force indicated by arrow Fs' is applied to the acceleration sensor 2.
- Fig. 3 illustrates a waveform 8a output from the Zener diode 8, a waveform 9a output from the amplifier 9, and a waveform 10a output from the comparator 10.
- the threshold value determining device 4, the counting device 5, and the falling-over determining device 6 include electronic devices (not illustrated) such as a microprocessor (MPU), a random access memory (RAM), and a read only memory (ROM) and a program stored in the ROM and the like.
- electronic devices such as a microprocessor (MPU), a random access memory (RAM), and a read only memory (ROM) and a program stored in the ROM and the like.
- the falling-over determining device 6 determines that the motorcycle M has fallen over in a case where the loop counter counts successive 100 times. This time, the acceleration detected by the acceleration sensor 2 is less than the threshold value for the first time, and therefore the number of counts of the loop counter is not larger than the predetermined value (NO in STEP5).
Description
- The present invention relates to a device that detects falling-over of a vehicle such as a motorcycle.
- Processing for stopping an engine of a vehicle such as a motorcycle when the vehicle has fallen over has been conventionally known. For example,
Patent Literature 1 discloses an engine control device that includes inclination angle detection means for detecting inclination of a vehicle and a rider operation detection means for detecting whether or not a rider is operating the vehicle. In a case where an inclination angle of the vehicle continues to be larger than a predetermined angle in a state where the rider is not operating the vehicle, the engine control device determines that the vehicle has fallen over and stops an engine. - According to
Patent Literature 1, the engine control device does not determine that the vehicle has fallen over in a case where the rider is operating the vehicle even in a case where the inclination angle of the vehicle is large. - In this way, malfunction of the engine control device is prevented.
- PTL 1:
Japanese Unexamined Patent Application Publication No. 2006-307782 - In this kind of falling-over detection device, means for preventing malfunction is provided so that engine stopping means does not act in a case where the vehicle actually has not fallen over, as in the device described in
Patent Literature 1. - As for a vehicle such as a motorcycle, there are a large number of disturbance factors such as an electromagnetic wave from an outside, vibration from a road surface, vibration of an engine itself, and a pulse from an electric system. These disturbance factors sometimes appear as noise on output of angle detection means.
- In a conventional device, inclination angle detection means detects an inclination angle of a vehicle periodically at constant intervals (e.g., one time per 10 msec). Some disturbance factors such as vibration of an engine itself occur in a cycle close to the constant cycle. Accordingly, if noise continues at intervals identical to intervals at which the inclination angle detection means detects the inclination angle of the vehicle, there is a risk of erroneous recognition that the vehicle has fallen over even in a case where the vehicle actually has not fallen over.
- In particular, in a case where the device performs control for stopping an engine in a case where the device determines that the vehicle has fallen over, the engine sometimes stops based on this erroneous recognition. If the engine stops during travelling, it is concerned that this leads to a falling-over accident.
- An object of the present invention is to provide a falling-over detection device that can prevent malfunction even in a case where noise caused by a disturbance factor affects detection of inclination of a vehicle.
- A vehicle falling-over detection device according to the present invention includes: inclination angle detection means for detecting an inclination angle of a vehicle; counting means for counting in a case where the inclination angle detected by the inclination angle detection means is equal to or larger than a predetermined angle; and determining means for determining that the vehicle has fallen over in a case where the counting means counts successively a predetermined number of times, wherein the inclination angle detection means includes interval deciding means for deciding a detection interval of detection of an angle of the vehicle, and wherein the interval deciding means makes the detection interval irregular.
- According to the vehicle falling-over detection device according to the present invention, the inclination angle detection means detects an angle at an irregular detection interval decided by the interval deciding means, and therefore even in a case where noise occurs in a constant cycle due to a disturbance factor, the noise does not always affect a detection value during detection of the inclination angle. Therefore, even if the inclination angle detection means determines that the inclination angle of the vehicle is equal to or larger than the predetermined angle due to the noise, such erroneous detection does not successively occur. Since output of the counting means does not successively occur accordingly, the determining means can determine that a previous result of detection of the inclination angle is erroneous detection. It is therefore possible to prevent erroneous determination of falling-over of a vehicle.
- The vehicle falling-over detection device according to the present invention is configured according to
claim 1 such that the interval deciding means includes: noise generating means for generating white noise, and pulse signal generating means for generating a pulse signal from the white noise; and a pulse interval of the pulse signal is used as the detection interval. By thus generating a pulse signal by using white noise, a pulse interval of the pulse signal is made irregular. This makes it possible to easily make the detection interval decided by the interval deciding means irregular. - The vehicle falling-over detection device according to the present invention is preferably configured such that the inclination angle detection means detects acceleration in a vertical direction in a vertically standing state of the vehicle by using an acceleration sensor. In a case where an acceleration sensor is used as the angle detection means, acceleration in a vertical direction of the vehicle decreases when the vehicle falls over, and therefore falling-over of the vehicle can be detected based on the decrease in this acceleration. Meanwhile, in a case where the vehicle is a motorcycle, a motorboat, or the like, inclination of the vehicle is large during circling, but since centrifugal force (centripetal force) is generated in the vehicle during circling of the vehicle, acceleration in the vertical direction of the vehicle increases due to component force of the centrifugal force in the vertical direction. According to the configuration, it is therefore possible to prevent erroneous determination in a case where inclination of the vehicle becomes large during circling of the vehicle.
- According to the present invention, it is possible to prevent erroneous determination even in a case where noise occurs in means for detecting inclination of a vehicle due to a disturbance factor.
-
- [
Fig. 1] Fig. 1(A) is an explanatory view illustrating a state where a falling-over detection device according to an embodiment of the present invention is mounted on a motorcycle and the motorcycle is not moving and is inclined, andFig. 1(B) is an explanatory view illustrating a vector of acceleration in a state where the motorcycle is travelling along a curve. - [
Fig. 2] Fig. 2 is an explanatory view illustrating a functional configuration of a falling-over detection device according to the present embodiment. - [
Fig. 3] Fig. 3 is an explanatory view illustrating an example of an interval adjusting device in the falling-over detection device according to the present embodiment. - [
Fig. 4] Fig. 4 is a flowchart illustrating operation of the falling-over detection device according to the present embodiment. - An exemplary embodiment of a vehicle falling-over detection device according to the present invention is described with reference to
Figs. 1 through 4 . As illustrated inFig. 1(A) , falling-overdetection device 1 according to the present embodiment is mounted on a motorcycle (vehicle) M. - As illustrated in
Fig. 2 , the falling-overdetection device 1 according to the present embodiment includes anacceleration sensor 2 that is inclination angle detection means and an interval adjusting device (interval deciding means) 3, and a thresholdvalue determining device 4 that determines whether or not an angle detected by theacceleration sensor 2 is larger than a predetermined threshold value. - Furthermore, the falling-over
detection device 1 includes a counting device (counting means) 5 that counts the number of times the thresholdvalue determining device 4 determines that the angle detected by theacceleration sensor 2 is larger than the predetermined threshold value and a falling-over determining device (determining means) 6 that determines that the motorcycle M has fallen over in a case where the count of thecounting device 5 is successive a predetermined number of times. Furthermore, the falling-overdetection device 1 is connected to anengine control device 7 that controls an engine of the motorcycle M. - The
acceleration sensor 2 has a movable part (not illustrated) elastically held inside theacceleration sensor 2. Theacceleration sensor 2 detects acceleration that acts on this movable part and transmits a signal according to the acceleration to an outside. Furthermore, theacceleration sensor 2 detects acceleration in a vertical direction in a state where the motorcycle M stands vertically, i.e., acceleration in an up-down direction of the vehicle. InFig. 1(A) , a direction indicated by arrow Fs' is a direction of detection of acceleration by theacceleration sensor 2. -
Fig. 1(A) illustrates a state where the motorcycle M that is not moving is inclined by an angle θ. In the state where the motorcycle M is not moving, acceleration that acts on the motorcycle M is only gravitational acceleration g. In this state, force indicated by arrow Fs' is applied to theacceleration sensor 2. - Assume that a weight of the movable part provided in the
acceleration sensor 2 is m, force m.g acts in a direction indicated by arrow Fs inFig. 1 . In this case, component force Fs' of arrow Fs is Fs.cosθ. Furthermore, the angle θ is found according to the following formula: θ = acos{Fs'/ - (m.g)}. In this case, in a case where θ is 0, i.e., in a case where the motorcycle M is standing upright, arrow Fs' = Fs = m.g, and the value is maximum. Meanwhile, in a case where 0 becomes closer to 90°, arrow Fs' becomes closer to 0. Accordingly, in a case where the value of θ is found from the magnitude of arrow Fs' and a value of the angle 0 at which it is determined that the motorcycle M has fallen over is set to the threshold value, it can be determined that the motorcycle M has fallen over in a case where θ is less than the threshold value, and it can be determined that the motorcycle M has not fallen over in a case where θ is equal to or larger than the threshold value. This threshold value can be, for example, set to 45°.
-
Fig. 1(B) illustrates a state of acceleration that occurs in a case where a rider is travelling on the motorcycle M along a curve. Arrow Fs in the vertical direction inFig. 1(B) is similar to that inFig. 1(A) , but centrifugal force is generated in a direction indicated by arrow Fc inFig. 1(B) during travelling along a curve. Accordingly, the magnitude of arrow Fs' detected by theacceleration sensor 2 is a synthetic vector of arrow Fs and arrow Fc. - Accordingly, even in a case where the motorcycle M is travelling along a curve at an angle θ similar to the angle θ in
Fig. 1(A) , the acceleration found by theacceleration sensor 2 is larger than that in the state where the motorcycle M is not moving. Therefore, in the present embodiment, t is not erroneously recognized that the motorcycle M has fallen over even in a case where the motorcycle M is inclined at a large angle during travelling along a curve. - The
acceleration sensor 2 detects acceleration in accordance with an interval of a signal emitted from theinterval adjusting device 3. As illustrated inFig. 3 , theinterval adjusting device 3 includes aZener diode 8 that is white noise generating means, an amplifier 9 that is pulse signal generating means, acomparator 10, and acounter 11. TheZener diode 8 receives power from a power source circuit, and thecomparator 10 compares signals supplied from a power source forreference voltage 12 and the amplifier 9. Furthermore, aresistor 13 is provided inFig. 3 . - In the
interval adjusting device 3, theZener diode 8 generates white noise, the amplifier 9 amplifies the white noise, and thecomparator 10 performs waveform shaping into a pulse signal. In theinterval adjusting device 3, thecounter 11 counts up the signal from thecomparator 10, and theacceleration sensor 2 detects acceleration while using the count as a trigger of an interval (detection interval) of signal detection. -
Fig. 3 illustrates awaveform 8a output from theZener diode 8, awaveform 9a output from the amplifier 9, and awaveform 10a output from thecomparator 10. - As described above, the
interval adjusting device 3 according to the present embodiment corresponds to interval deciding means according to the present invention, theZener diode 8 according to the present embodiment corresponds to noise generating means according to the present invention, the amplifier 9, thecomparator 10, and thecounter 11 according to the present embodiment correspond to pulse signal generating means according to the present invention. - The threshold
value determining device 4, thecounting device 5, and the falling-over determiningdevice 6 according to the present embodiment include electronic devices (not illustrated) such as a microprocessor (MPU), a random access memory (RAM), and a read only memory (ROM) and a program stored in the ROM and the like. - The threshold
value determining device 4 determines whether or not an angle detected by theacceleration sensor 2 is larger than a predetermined threshold value. Thecounting device 5 cumulatively adds up the number of times the thresholdvalue determining device 4 determines that output of theacceleration sensor 2 is less than the threshold value. Meanwhile, thecounting device 5 is configured to reset the accumulated counts in a case where the thresholdvalue determining device 4 determines that the output of theacceleration sensor 2 is equal to or larger than the threshold value, as described later. The falling-over determiningdevice 6 determines that the motorcycle M has fallen over in a case where the number of counts of thecounting device 5 is larger than a predetermined number (e.g., 100). - Next, operation of the falling-over
detection device 1 according to the present embodiment is described with reference toFig. 4 . In a case where a rider is driving the motorcycle M, an ignition switch (not illustrated) is on and power is on accordingly, and an engine is operating. In this case, in the falling-overdetection device 1, initial settings are made (STEP1), and counts of thecounting device 5 in previous travelling are reset if any. - Next, the falling-over
detection device 1 decides an interval of acceleration detection performed by theacceleration sensor 2 on the basis of a signal from the interval adjusting device 3 (STEP2). This processing makes an interval of acceleration detection performed by theacceleration sensor 2 irregular. - Next, the
acceleration sensor 2 detects acceleration at the interval thus made irregular (STEP3). Next, the thresholdvalue determining device 4 compares the acceleration detected by theacceleration sensor 2 with a threshold value. A case where the acceleration detected by theacceleration sensor 2 is equal to or larger than the threshold value (NO in STEP4) is a case where the angle 0 of the motorcycle M is small. In this case, the motorcycle M has not fallen over, and therefore a loop counter is reset in the counting device 5 (STEP7). In this case, the processing returns to a point before STEP2, and interval adjustment (STEP2) and acceleration reading (STEP3) are performed. - A case where the acceleration detected by the
acceleration sensor 2 is less than the threshold value (YES in STEP4) is a case where the angle θ of the motorcycle M is large enough to exceed a threshold value used for determination of falling-over, and therefore the falling-over determiningdevice 6 verifies whether or not the number of counts of the loop counter is larger than a predetermined value (STEPS). - In the present embodiment, the falling-over determining
device 6 determines that the motorcycle M has fallen over in a case where the loop counter counts successive 100 times. This time, the acceleration detected by theacceleration sensor 2 is less than the threshold value for the first time, and therefore the number of counts of the loop counter is not larger than the predetermined value (NO in STEP5). - In this case, the
counting device 5 increments the loop counter by 1, and then the processing returns to a point before STEP2. - In a case where the motorcycle M has actually fallen over, a state where the acceleration detected by the
acceleration sensor 2 is less than the threshold value continues, and therefore the processes in STEP2 through STEP5 are repeated, and as a result, the number of counts of the loop counter becomes larger than the predetermined value (YES in STEP5). In this case, the falling-overdetection device 1 determines that the motorcycle M has fallen over and gives the engine control device 7 a notification about falling-over (STEP6). Theengine control device 7 turns off the ignition switch and stops the engine upon receipt of the notification about falling-over from the falling-overdetection device 1. - According to the falling-over determining
device 6 according to the present embodiment, theacceleration sensor 2 detects an angle at an irregular interval decided by theinterval adjusting device 3. Accordingly, even in a case where noise occurs at constant intervals (in a constant cycle), for example, due to vibration of an engine or due to an electric system, the interval of acceleration detection performed by theacceleration sensor 2 is irregular and does not always match a cycle of generation of the noise. Therefore, this noise does not successively affect a value acquired by theacceleration sensor 2. Therefore, the falling-over determiningdevice 6 according to the present embodiment has high resistance against a disturbance factor and therefore can prevent erroneous determination of falling-over of a vehicle. - Although the motorcycle M has been described as an example of a vehicle in the above embodiment, the above embodiment is not limited to this and is applicable to vehicles that have a risk of falling-over depending on a situation such as three-wheeled vehicles called trikes and ships.
- The
interval adjusting device 3 according to the present embodiment decides an interval of acceleration detection performed by theacceleration sensor 2 by setting a circuit constant of a circuit including theZener diode 8 and count-up in thecounter 11. Accordingly, in a case where the falling-overdetection device 1 according to the present invention is applied to a vehicle other than the motorcycle M, the settings can be adjusted in accordance with properties of the vehicle. Theinterval adjusting device 3 may use a preset irregular pulse interval repeatedly instead of using theZener diode 8 and the like. Reference Signs List - M
- motorcycle (vehicle)
- 1
- falling-over detection device
- 2
- acceleration sensor
- 3
- interval adjusting device
- 4
- threshold value determining device
- 5
- counting device
- 6
- falling-over determining device
- 7
- engine control device
- 8
- Zener diode
- 9
- amplifier
- 10
- comparator
- 11
- counter
Claims (2)
- A vehicle falling-over detection device (1) comprising:inclination angle detection means (2) for detecting an inclination angle of a vehicle;counting means (5) for counting in a case where the inclination angle detected by the inclination angle detection means (2) is equal to or larger than a predetermined angle; anddetermining means (6) for determining that the vehicle has fallen over in a case where the counting means (5) counts successively a predetermined number of times,characterised in thatthe inclination angle detection means (2) includes interval deciding means (3) for deciding a detection interval of detection of an angle of the vehicle,the interval deciding means (3) makes the detection interval irregular, andthe interval deciding means (3) comprises:a Zener diode (8) for generating white noise;an amplifier (9) for amplifying the white noise;a comparator (10) for performing waveform shaping based on the amplified white noise into a pulse signal; anda counter (11) for counting up the pulse signal,wherein a pulse interval of the pulse signal is used as the detection interval.
- The vehicle falling-over detection device according to Claim 1, wherein the inclination angle detection means (2) detects acceleration in a vertical direction in a vertically standing state of the vehicle by using an acceleration sensor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2017023455 | 2017-02-10 | ||
PCT/JP2018/002673 WO2018147110A1 (en) | 2017-02-10 | 2018-01-29 | Vehicle overturn detection device |
Publications (3)
Publication Number | Publication Date |
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EP3581475A1 EP3581475A1 (en) | 2019-12-18 |
EP3581475A4 EP3581475A4 (en) | 2021-01-06 |
EP3581475B1 true EP3581475B1 (en) | 2022-03-02 |
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EP18752052.3A Active EP3581475B1 (en) | 2017-02-10 | 2018-01-29 | Vehicle overturn detection device |
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US (1) | US11472355B2 (en) |
EP (1) | EP3581475B1 (en) |
JP (1) | JP6691242B2 (en) |
CN (1) | CN110177735B (en) |
WO (1) | WO2018147110A1 (en) |
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CN112073899A (en) * | 2020-08-13 | 2020-12-11 | 北京骑胜科技有限公司 | Vehicle state detection method and processing method |
CN112061080B (en) * | 2020-09-08 | 2022-04-19 | 中国第一汽车股份有限公司 | Vehicle abnormal motion detection method, device, equipment and medium |
CN114789764B (en) * | 2022-05-27 | 2023-02-14 | 浙江莫里尼机车有限公司 | Parking safety management system for PHEV motorcycle |
CN115180059A (en) * | 2022-07-05 | 2022-10-14 | 苏州万佳电器有限公司 | Fall warning device and method, two-wheel vehicle and storage medium |
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GB2229536B (en) * | 1989-03-22 | 1993-04-07 | Ferranti Int Signal | Signal processing apparatus and method |
JPH10107629A (en) * | 1996-10-02 | 1998-04-24 | Hitachi Ltd | Signal processing unit and system provided with it |
JP3501042B2 (en) * | 1999-10-20 | 2004-02-23 | いわき電子株式会社 | Probability and random number generators |
JP2002071703A (en) * | 2000-09-01 | 2002-03-12 | Yamaha Motor Co Ltd | Acceleration sensor for motorcycle |
TW561262B (en) | 2001-10-19 | 2003-11-11 | Yamaha Motor Co Ltd | Tipping detecting device for a motorcycle |
JP2005057845A (en) * | 2003-08-07 | 2005-03-03 | Meidensha Corp | Controller of motor-operated vehicle |
US7029014B2 (en) * | 2004-02-25 | 2006-04-18 | Hamm Alton B | Vehicle stability control system |
JP4095987B2 (en) | 2004-12-16 | 2008-06-04 | 富士通株式会社 | Clock generating circuit, signal multiplexing circuit, optical transmitter, and clock generating method |
JP2006307782A (en) * | 2005-04-28 | 2006-11-09 | Yamaha Motor Co Ltd | Control device for vehicle engine, control method and its program |
JP4846664B2 (en) | 2007-06-22 | 2011-12-28 | 川崎重工業株式会社 | Vehicle with fall detection function |
US9138174B2 (en) * | 2008-05-12 | 2015-09-22 | Koninklijke Philips N.V. | Displacement measurement in a fall detection system |
US10466269B2 (en) * | 2013-02-19 | 2019-11-05 | Calamp Corp. | Systems and methods for low latency 3-axis accelerometer calibration |
JP6028060B2 (en) * | 2015-03-26 | 2016-11-16 | 本田技研工業株式会社 | Vehicle control device |
CN105225419A (en) * | 2015-09-18 | 2016-01-06 | 深圳大学 | Fall detection method, system and the autoalarm of falling based on this system |
US11209269B2 (en) * | 2016-10-25 | 2021-12-28 | Mitsubishi Electric Corporation | Inclination angle detection apparatus and auto levelizer |
JP6571631B2 (en) * | 2016-12-26 | 2019-09-04 | 国立大学法人 東京大学 | Traveling vehicle and method for controlling traveling vehicle |
-
2018
- 2018-01-29 JP JP2018567369A patent/JP6691242B2/en active Active
- 2018-01-29 WO PCT/JP2018/002673 patent/WO2018147110A1/en unknown
- 2018-01-29 EP EP18752052.3A patent/EP3581475B1/en active Active
- 2018-01-29 CN CN201880007057.0A patent/CN110177735B/en active Active
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2019
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Also Published As
Publication number | Publication date |
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EP3581475A1 (en) | 2019-12-18 |
CN110177735A (en) | 2019-08-27 |
CN110177735B (en) | 2020-10-27 |
US11472355B2 (en) | 2022-10-18 |
JP6691242B2 (en) | 2020-04-28 |
EP3581475A4 (en) | 2021-01-06 |
US20190339073A1 (en) | 2019-11-07 |
JPWO2018147110A1 (en) | 2019-06-27 |
WO2018147110A1 (en) | 2018-08-16 |
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